WO2014088050A1 - 静電噴霧装置 - Google Patents
静電噴霧装置 Download PDFInfo
- Publication number
- WO2014088050A1 WO2014088050A1 PCT/JP2013/082654 JP2013082654W WO2014088050A1 WO 2014088050 A1 WO2014088050 A1 WO 2014088050A1 JP 2013082654 W JP2013082654 W JP 2013082654W WO 2014088050 A1 WO2014088050 A1 WO 2014088050A1
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- WIPO (PCT)
- Prior art keywords
- liquid
- electrostatic spraying
- air path
- chamber
- spraying device
- Prior art date
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B5/00—Electrostatic spraying apparatus; Spraying apparatus with means for charging the spray electrically; Apparatus for spraying liquids or other fluent materials by other electric means
- B05B5/025—Discharge apparatus, e.g. electrostatic spray guns
- B05B5/03—Discharge apparatus, e.g. electrostatic spray guns characterised by the use of gas, e.g. electrostatically assisted pneumatic spraying
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M11/00—Sprayers or atomisers specially adapted for therapeutic purposes
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M15/00—Inhalators
- A61M15/02—Inhalators with activated or ionised fluids, e.g. electrohydrodynamic [EHD] or electrostatic devices; Ozone-inhalators with radioactive tagged particles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B5/00—Electrostatic spraying apparatus; Spraying apparatus with means for charging the spray electrically; Apparatus for spraying liquids or other fluent materials by other electric means
- B05B5/025—Discharge apparatus, e.g. electrostatic spray guns
- B05B5/0255—Discharge apparatus, e.g. electrostatic spray guns spraying and depositing by electrostatic forces only
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B5/00—Electrostatic spraying apparatus; Spraying apparatus with means for charging the spray electrically; Apparatus for spraying liquids or other fluent materials by other electric means
- B05B5/025—Discharge apparatus, e.g. electrostatic spray guns
- B05B5/057—Arrangements for discharging liquids or other fluent material without using a gun or nozzle
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B5/00—Electrostatic spraying apparatus; Spraying apparatus with means for charging the spray electrically; Apparatus for spraying liquids or other fluent materials by other electric means
- B05B5/16—Arrangements for supplying liquids or other fluent material
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M2205/00—General characteristics of the apparatus
- A61M2205/21—General characteristics of the apparatus insensitive to tilting or inclination, e.g. spill-over prevention
Definitions
- the present invention relates to an electrostatic spraying device in which liquid leakage of the sprayed liquid hardly occurs.
- the 6 includes a chamber 101, a spray unit 102, and a liquid supply unit 103, and the liquid 104 supplied from the liquid supply unit 103 to the chamber 101 is sprayed from the spray unit 102.
- the chamber 104 is filled with the liquid 104, the liquid level holding hole 105 is closed, and the air flow from the air hole 106 to the chamber 101 is cut off.
- the supply of the liquid 104 from the liquid supply unit 103 to the chamber 101 is stopped, and the liquid level is maintained at a constant height.
- the liquid 104 is accommodated in the chamber 101 and the liquid 104 is sprayed using the electric field from the spraying part 102.
- the liquid level holding hole 105 and the air hole 106 are communicated with each other through a linear air path 107, and the liquid level is changed when the device is inclined at a predetermined angle due to the device falling or the like.
- the liquid 104 moves from the holding hole 105 to the air hole 106 and liquid leakage to the outside of the electrostatic spraying device 100 occurs.
- an object of the present invention is to provide an electrostatic spraying device that is less likely to cause liquid leakage when tilted due to falling.
- an electrostatic spraying apparatus is an electrostatic spraying apparatus that sprays a liquid.
- the electrostatic spraying apparatus is formed in the chamber containing a liquid supplied from a liquid supply unit, and the liquid
- An air path that connects a liquid level holding hole that is blocked or opened by the liquid according to the height of the liquid level and an air hole that supplies air to the chamber from the outside of the electrostatic spraying device,
- the liquid level holding hole is closed by the liquid, the liquid supply from the liquid supply unit to the chamber is stopped, and the air path has a bent portion, and the air path includes the It is characterized in that a space for holding a liquid is formed.
- the air path has a bent portion, even when the electrostatic spraying device is tilted due to a fall or the like, even if the liquid flows into the air path from the liquid level holding hole, the liquid stays in the bent portion and immediately No liquid leakage from the air hole. Further, while the liquid is retained, the flow rate of the liquid to the liquid level holding hole increases, the liquid level holding hole is blocked by the liquid, and the supply of the liquid from the liquid supply unit can be stopped.
- the electrostatic spraying device of the present invention has a liquid leakage preventing effect.
- An electrostatic spraying apparatus includes a chamber that contains a liquid supplied from a liquid supply unit, and a liquid that is formed in the chamber and is closed or opened by the liquid according to the height of the liquid level of the liquid.
- An air path that connects the surface holding hole and an air hole that supplies air to the chamber from the outside of the electrostatic spraying device, and when the liquid level holding hole is blocked by the liquid, The liquid supply to the chamber is stopped, The air path has a bent portion, and a space for holding the liquid is formed in the air path.
- the present invention is not limited to this.
- the same parts and components are denoted by the same reference numerals. Their names and functions are also the same. Therefore, detailed description thereof will not be repeated.
- up and down corresponds to up and down in the vertical direction.
- the horizontal direction and the horizontal direction indicate directions perpendicular to the vertical direction.
- FIG. 1 is a cross-sectional view showing an electrostatic spraying device 50 according to the present invention from a cross section including a central air passage 7 toward a liquid supply unit 3. That is, FIG. 1 is a cross-sectional view of the electrostatic spraying device 50 according to the present invention, and the cross-sectional view of FIG. 1 includes a cross section of air paths 7b and 7c extending in the horizontal direction.
- the electrostatic spraying device 50 includes a chamber 1 and a spraying unit 2.
- the chamber 1 is a space or a container that contains the liquid 4.
- the volume of the chamber 1 is set based on the size of the spray unit 2 and the consumption (spray amount) of the liquid 4 to be sprayed, and can be, for example, 200 mm 3 .
- FIG. 7 is a view showing the chamber 1, and the liquid 4 is accommodated in the chamber 1 indicated by a thick line in FIG. 7.
- the liquid supply part 3 is shown with the broken line for legibility.
- the liquid supply unit 3 is detachably attached to the upper portion of the chamber 1, and the liquid is supplied from the liquid supply unit 3 into the chamber 1 by a method described later.
- the spray unit 2 is a member used for spraying aromatic oil, agricultural chemicals, pharmaceuticals, agricultural chemicals, insecticides, air cleaning chemicals, and the like, and sprays the liquid 4 to the outside of the electrostatic spraying device 50. .
- the liquid 4 is not particularly limited as long as it is sprayed in a mist (mist) state from the electrostatic spraying device 50 by the spraying unit 2.
- Specific examples include water and liquids containing various insecticidal, bactericidal, and aromatic components, and the above-mentioned components include the following known components: synthetic pyrethroid compounds; organophosphorus compounds; carbamate compounds A nereistoxin compound, a neonicotinoid compound, a benzoylurea compound, a phenylpyrazole compound, a hydrazine compound, an organochlorine compound, a natural insecticide, other insecticides, repellents, synergists, and the like.
- the concentration of the above components is not particularly limited, and can be, for example, 0.05 to 10% by mass with respect to the total mass of the liquid.
- the concentration of the above components may be adjusted using a solvent such as water, dipropylene glycol monoethyl ether, ethanol, 1-propanol, 2-propanol, 1-methoxy-2-propanol.
- preservative, surfactant, etc. may be suitably mixed with the said liquid.
- FIG. 2 is a plan view showing the spray unit 2.
- the spray unit 2 includes at least a spray electrode 21, a reference electrode 22, a power supply device 23, and a dielectric 24.
- the spray unit 2 may be realized by a configuration in which the power supply device 23 is provided outside and connected to the power supply device 23.
- the spray electrode 21 has a conductive conduit such as a metallic capillary (for example, 304 type stainless steel) and a spray portion at the tip.
- the spray electrode 21 is connected to the reference electrode 22 via the power supply device 23 and sprays liquid from the spray site.
- the reference electrode 22 is made of a conductive rod such as a metal pin (for example, 304 type stainless steel).
- the spray electrode 21 and the reference electrode 22 are spaced apart from each other by a predetermined distance and are arranged in parallel to each other.
- the power supply device 23 applies a high voltage between the spray electrode 21 and the reference electrode 22.
- the power supply device 23 applies a high voltage (for example, 3-7 kV) between 1-30 kV between the spray electrode 21 and the reference electrode 22.
- a high voltage for example, 3-7 kV
- an electric field is formed between the electrodes, and an electric dipole is generated inside the dielectric 24.
- the spray electrode 21 is positively charged and the reference electrode 22 is negatively charged (or vice versa).
- Negative dipoles are generated on the surface of the dielectric 24 closest to the positive spray electrode 21, and positive dipoles are generated on the surface of the dielectric 24 closest to the negative reference electrode 22, and the charged gas and substance species (Liquid 4) is discharged as mist by the spray electrode 21 and the reference electrode 22.
- the dielectric 24 is not particularly limited as long as it is a resin. Examples include resins such as polypropylene, nylon 6, nylon 11, nylon 12, nylon 66 or polyacetyl-polytetrafluoroethylene mixture.
- the dielectric 24 supports the spray electrode 21 at the spray electrode mounting portion 25 and supports the reference electrode 22 at the reference electrode mounting portion 26.
- the liquid supply unit 3 is detachably attached to the upper part of the electrostatic spraying device 50. Specifically, the liquid supply unit 3 is detachably attached to the upper portion of the chamber 1. A liquid is stored in the liquid supply unit 3, and the liquid 4 stored in the liquid supply unit 3 is supplied to the chamber 1.
- FIG. 8 is a perspective view showing an example of the liquid supply unit 3.
- the liquid supply unit 3 includes a container body 31 and a cap 32.
- the container main body 31 stores a liquid.
- the material of the container body 31 is not limited to a specific material, and may be plastic, glass, or the like.
- the size and shape of the container body 31 are not limited to specific ones, and may be any shape that can be attached to the chamber 1.
- the lid 32 is detachably attached to the opening of the container body 31 by a known method such as fitting or screwing.
- the lid 32 is formed with an opening for allowing the liquid to flow out.
- the material of the lid 32 is not limited to a specific material, and may be plastic or the like.
- the size and shape of the lid 32 are not limited to a specific one.
- the liquid supply unit 3 (more specifically, the structure of the lid 32) is not limited to a specific structure as long as it can supply liquid to the chamber 1 by a method described later.
- the liquid supply unit 3 may be regarded as a part of the electrostatic spraying device 50 or may be regarded as a separate body from the electrostatic spraying device 50.
- the air hole 6 is formed on the outer surface of the electrostatic spraying device 50 and is connected to the air path 7.
- air outside air
- the air hole 6 should just be formed in the outer surface of the electrostatic spraying apparatus 50, and the formation location is not specifically limited, You may be formed in the upper surface or side surface of the electrostatic spraying apparatus 50.
- the air holes 6 are formed on the upper surface of the electrostatic spraying device 50. Thereby, the liquid 4 is less likely to leak from the chamber 1 in the electrostatic spraying device 50.
- the air hole 6 is formed in one place as a preferable form.
- the formation location of the air hole 6 is not limited to one location, and may be a plurality of locations.
- the liquid level holding hole 5 is formed in the chamber 1, and the liquid level holding hole 5 and the air hole 6 are connected via an air path 7.
- the liquid level holding hole 5 is formed to allow outside air to pass through the chamber 1, and the liquid level holding hole 5 is closed or opened by the liquid 4 according to the liquid level of the liquid 4 in the chamber 1. . That is, when the liquid level is the same as the liquid level holding hole 5 or higher than the liquid level holding hole 5, the liquid level holding hole 5 is closed by the liquid 4, and the liquid level is held at the liquid level. When lower than the hole 5, the liquid level holding hole 5 is opened from the liquid 4, and the chamber 1 is opened to the atmosphere.
- the diameter of the liquid surface holding hole 5 and the air hole 6 (in the case of a polygon, the length of the maximum side) is not particularly limited, and for example, the diameter can be 0.5 mm or more and 3 mm or less.
- the shape of the liquid surface holding hole 5 and the air hole 6 is not specifically limited, For example, it can design in circular, ellipse; quadrangle, such as a triangle, a rectangle, and a square, polygonal shapes, such as a pentagon and a hexagon. From the viewpoint of preventing liquid leakage from the air hole 6, it is preferable that the linear distance between the liquid level holding hole 5 and the air hole 6 is long.
- the air path 7 is a path connected to the liquid level holding hole 5 and the air hole 6 and is an air path for opening the chamber 1 to the atmosphere.
- the chamber 1 is opened to the atmosphere via the liquid level holding hole 5, the air hole 6, and the air path 7.
- the air path 7 has at least an air path 7a (first portion) extending in a direction (first direction) perpendicular to the liquid level of the liquid contained in the chamber 1. ), An air path 7b (second portion) extending in the second direction (in the direction of the axis 9 in FIG. 4) in which the angle with respect to the liquid surface is smaller than that in the first direction, and the air path 7b. And an air path 7c (third portion) located on the air hole 6 side.
- a bent part (first bent part) 8a which is one of the bent parts 8 is formed.
- the air path 7b is inclined with respect to the liquid surface so that the bent portion 8a side is close to the liquid surface.
- the air path 7c is inclined with respect to the liquid surface so that the side opposite to the bent portion 8a is close to the liquid surface.
- a liquid holding space (first space) 10a that is a space connected to the air path 7a and the air path 7b and holding one of the liquids is formed. Yes. Further, on the side opposite to the bent portion 8a of the air path 7c, a space connected to the air path 7c and another liquid holding space (second space) 10b is formed.
- the air path 7a extends in a direction (first direction) perpendicular to the liquid level.
- the air path 7a may extend in a direction inclined with respect to the liquid level.
- liquid level means a liquid level in an installation state assumed when the electrostatic spraying device 50 is used.
- the electrostatic spraying device 50 is assumed to be installed such that the bottom surface of the electrostatic spraying device 50 is horizontal.
- the diameter of the air path 7 is not particularly limited, and for example, the diameter can be 0.5 mm or more and 3 mm or less.
- the shape of the air path 7 is not specifically limited, For example, it can design circular, ellipse; quadrangle, such as a triangle, a rectangle, and a square, polygonal shapes, such as a pentagon and a hexagon.
- the length of the air path 7, that is, the distance from the liquid level holding hole 5 to the air hole 6 is changed depending on the amount of the liquid 4 stored in the chamber 1, for example, 11 mm or more and 100 mm or less. Can do.
- the electrostatic spraying device 50 when the inside of the chamber 1 is at atmospheric pressure (1 atm), in other words, when the chamber 1 is opened to the atmosphere via the liquid level holding hole 5, the air hole 6, and the air path 7. The liquid flows from the liquid supply unit 3 to the chamber 1.
- the liquid level holding hole 5 is closed with the liquid and the chamber 1 is closed from the outside of the electrostatic spraying device 50, the liquid outflow from the liquid supply unit 3 to the chamber 1 may continue for a while. Eventually, the outflow will stop. In this state, since the liquid 4 is not supplied from the liquid supply unit 3, the liquid level of the liquid 4 is maintained.
- the electrostatic spraying device 50 is preferably used in that complicated control is not required because the supply and stop of the liquid 4 to the chamber 1 are switched according to the internal pressure of the chamber 1.
- the liquid level holding hole 5 is opened from the liquid 4, and the chamber 1 is opened to the atmosphere. .
- the liquid 4 is supplied from the liquid supply unit 3 to the chamber 1, and the liquid level rises and is maintained at a constant height.
- FIG. 3 is a schematic plan view showing the path of the air path 7.
- the air path 7 is formed from the liquid level holding hole 5 to the air hole 6 through the side of the liquid supply unit 3.
- the air hole is more air-filled than the part formed in the lateral direction located on the near side of the liquid supply unit 3 (the part indicated by the solid line in the air path 7 in FIG. 3).
- 6 is arranged on the back side (upper side in the drawing).
- the air hole 6 when viewed in the plan view of FIG. 3, the air hole 6 is not located on the extension line of the portion indicated by the solid line in the air path 7.
- the air path 7 has a bent portion (bent portion) in the path leading to the air hole 6.
- the liquid does not leak immediately from the air hole 6.
- the liquid supply unit 3 is positioned above the chamber 1 and the air path 7 is convex upward.
- the state where the electrostatic spraying device 50 stands is a state where the liquid supply unit 3 is located above the chamber 1 and the electrostatic spraying device 50 is not overturned.
- the inclination that is convex upward means that an inclination is provided from one lower side to the upper side in the air path 7, and an inclination is provided from the portion that becomes the apex on the upper side to the other lower side. Means.
- the air passage 7 when the air passage 7 has a portion extending in the horizontal direction when viewed in the cross-sectional view of FIG. 1, the air passage 7 has a convex portion protruding upward at that portion.
- convex portions protruding upward are formed in the air path 7 so that the angle A described in the drawing is smaller than 180 degrees.
- the air path 7 may be formed so as to have an inclined portion that is inclined with respect to the horizontal direction, instead of the convex portion protruding upward. Also with this configuration, in the air path 7, it is possible to eliminate the retention of the liquid in the air path 7, and to prevent the air path 7 from being blocked by the liquid.
- the air path 7 has a bent portion 8 to prevent liquid leakage.
- the bent portion 8 is a bent space or portion of the air path 7, and the air path 7 is bent. Due to the presence of the bent portion 8, when the electrostatic spraying device 50 is tilted due to overturning or the like, even if the liquid 4 flows into the air path 7 from the liquid level holding hole 5, it stays at the bent portion 8 and immediately Liquid leakage from the air hole 6 does not occur. Further, while the liquid 4 stays, the flow rate of the liquid 4 to the liquid level holding hole 5 increases, the liquid level holding hole 5 is closed by the liquid 4, and the supply of the liquid 4 from the liquid supply unit 3 is performed. Can be stopped. As described above, the electrostatic spraying device 50 has a liquid leakage preventing effect and can control the liquid level.
- This type of electrostatic spraying device is often small and the structure is usually simplified.
- priority is given to simplification of the apparatus, and the air path 107 is linear. For this reason, countermeasures against liquid leakage are made only by stably installing the apparatus.
- the present invention has been completed by reexamining the structure of a simple electrostatic spraying device and finding a countermeasure against liquid leakage by providing a bent portion in the air path.
- FIG. 4 is a cross-sectional view of the bent portion 8 of the electrostatic spraying device 50.
- the bent portion 8 constituting one of the slopes of the air path 7 is bent by 85 ° with respect to the vertical direction. That is, the shaft 9 is bent with respect to the vertical direction by an angle B in the drawing. Similarly, the bent portion constituting the other slope of the air path 7 is bent by 85 ° with respect to the vertical direction. For this reason, the convex inclination of the air path 7 is 5 ° on one side (right side in the drawing) and 5 ° on the other side (left side in the drawing).
- the air path 7 extending in the vertical direction extends in the direction of the shaft 9 (the second direction described above), that is, with respect to the vertical direction. It is bent by an angle B.
- This bent portion is the bent portion 8.
- the angle B in the figure is 85 °.
- the bent portion constituting the other slope of the air path 7 is also bent by 85 °.
- the above-described slope of the air path 7 is 5 ° on one side (right side in the figure) and 5 ° on the other side (left side in the figure) with respect to the horizontal direction.
- the angle B of the bent portion is not particularly limited, and can be in a range larger than 0 ° and smaller than 90 °, and a direction closer to 90 ° can contribute to miniaturization of the electrostatic spraying device 50.
- the inclination which becomes the said convex of the air path 7 may differ in the inclination angle by right and left on the basis of the convex vertex with respect to a horizontal direction.
- the bent portion 18 may be bent smoothly.
- the axis 19 of the bent portion 18 set along the direction in which the air path 7 is bent with respect to the vertical direction is bent smoothly, and the angle C shown in FIG. 5 of the bent portion 18 is 85 °.
- the air path 7 is bent at 85 ° with respect to the vertical direction.
- the angle C indicates an angle formed by an axis (direction D in the drawing) set in a direction extending linearly after the air path 7 is smoothly bent at the bent portion 18 with respect to the vertical direction.
- the angle C of the bent portion 18 is not particularly limited, and can be in a range larger than 0 ° and smaller than 90 °.
- the bent portion 8 is a bent space or portion of the air path 7, the bent portion 8 includes portions indicated by reference numerals 8b, 8c, and 8d in FIG.
- a liquid holding space 10 which is a space for holding the liquid in the air path 7 is formed as a preferred form.
- the liquid holding space 10 is not limited to one place, and may be formed at two places as in the electrostatic spraying device 50, or may be formed at three or more places.
- the directions, positions, and the like in which the plurality of liquid holding spaces 10 are formed are different from each other as in the electrostatic spray device 50.
- a large amount of the liquid 4 can be retained in any one of the plurality of liquid holding spaces 10. For example, in one liquid holding space 10, even if the inflow amount of the liquid 4 is an angle, the liquid 4 entering the other liquid holding space 10 is formed to have a different intrusion angle. A large amount of liquid 4 can be retained in the space 10.
- the volume of the liquid holding space 10 is set based on the storage amount of the liquid 4 in the chamber 1, the supply amount of the liquid 4 to the chamber 1 by the liquid supply unit 3, etc., and may be, for example, 100 mm 3 or more and 200 mm 3 or less. it can.
- the liquid holding space 10 is provided in the air path 7 by effectively using the internal space of the electrostatic spraying device. Can be effectively prevented.
- the electrostatic spraying device 50 preferably includes a porous body in the liquid holding space 10.
- the porous body is a member in which a large number of pores are formed, and any member that contacts the liquid 4 when the liquid 4 moves through the air path 7 and slows the movement of the liquid 4 may be used.
- the porous body does not block the air path 7.
- the porous body include a resin body having open cells made of polyurethane, polyethylene, polyethylene terephthalate, polyvinyl formal, polystyrene, and the like; a porous body that is compression-sintered using resin fine particles such as polyethylene, polypropylene, and nylon as main components.
- Body Porous body made of polyfluorinated ethylene, etc .; Felt member made of polyester, polypropylene, nylon, acrylic, rayon, wool, etc .; or polyolefin fiber, polyester fiber, nylon fiber, rayon fiber, acrylic fiber, vinylon fiber, polyfural fiber
- An aggregate of resin fibers such as non-woven fabric composed of aramid fibers, etc .
- a porous inorganic powder sintered body obtained by compressing and sintering an inorganic powder such as ceramic as a main component can be exemplified, but is not limited to these is not.
- Example 1 The electrostatic spraying device 50 according to FIG. 1 was sequentially tilted in the four directions of front, rear, left and right, and after confirming the presence or absence of liquid leakage, it was returned to the original state and the presence or absence of liquid leakage was confirmed.
- the electrostatic spraying device 50 has two liquid holding spaces 10 with a capacity of 200 mm 3 , the angle A of the air path 7 is 170 °, and a part of the air path 7 is left and right respectively. A 5 ° slope is provided.
- the setting conditions of the electrostatic spraying device 50 are as follows.
- the liquid supply unit 3 After sealing the liquid supply unit 3, the liquid supply unit 3 is attached to the electrostatic spraying device 50, and after the liquid supply unit 3 starts to supply the liquid to the chamber 1, there is no movement of air from the air hole 6.
- the liquid level of the liquid 4 in the chamber 1 was determined to be constant.
- the electrostatic spraying device 50 is tilted 90 ° to (1) front side (front side of FIG. 1) and left for 30 minutes, and then it is confirmed whether the liquid 4 has leaked from the air hole 6. It was.
- the electrostatic spraying device 50 is tilted 90 ° from the state shown in FIG. 1 to (2) back side (the back side of the drawing) and left for 30 minutes, and then it is confirmed whether the liquid 4 has leaked from the air hole 6. Liquid leakage did not occur.
- the electrostatic spraying device 50 after confirming that there is no liquid leakage by the operations of (1) and (2) above is tilted 90 ° from the state shown in FIG. 1 to (3) the right side (right side of the drawing), After leaving for 30 minutes, it was confirmed whether or not the liquid 4 leaked from the air hole 6, and no liquid leak occurred. Further, the electrostatic spraying device 50 was tilted 90 ° from the state shown in FIG. 1 to the left side (4) (left side of the drawing) and left for 30 minutes, and then it was confirmed whether the liquid 4 leaked from the air hole 6. Did not occur.
- the electrostatic spraying device 50 in the state of being tilted to the left is returned to the vertically placed state shown in FIG. 1 and left for 24 hours, and then it is confirmed whether the liquid 4 has leaked from the air hole 6. There was no leakage.
- the electrostatic spraying device 50 according to the present invention is useful because liquid leakage from the air hole 6 does not occur and the problems of the conventional electrostatic spraying device are improved.
- an electrostatic spraying apparatus includes a chamber for storing a liquid in the electrostatic spraying apparatus for spraying a liquid, and the liquid is placed in the chamber when the chamber is at atmospheric pressure.
- the chamber is provided with a liquid level holding hole that is closed or opened by the liquid in accordance with the liquid level of the liquid.
- An air hole for supplying air to the chamber from the outside of the spraying device is connected to the chamber through an air path.
- the air path has a bent portion, and a space for holding a liquid is formed in the air path. It may be characterized by that.
- the air path has a bent portion, even when the electrostatic spraying device is tilted due to a fall or the like, even if the liquid flows into the air path from the liquid level holding hole, the liquid stays in the bent portion and immediately No liquid leakage from the air hole. Further, while the liquid is retained, the flow rate of the liquid to the liquid level holding hole increases, the liquid level holding hole is blocked by the liquid, and the supply of the liquid from the liquid supply unit can be stopped.
- the electrostatic spraying device of the present invention has a liquid leakage preventing effect.
- the liquid supply unit when the electrostatic spraying device is standing and the gravity direction is set to the lower side, the liquid supply unit is positioned above the chamber, and the air path is It is preferable to have a slope that is convex.
- the shape of the air path makes it possible to provide an electrostatic spraying device in which the air path is difficult to block because the liquid easily flows along the slope even if the liquid enters the air path.
- the present invention can be suitably used for an electrostatic spraying device.
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Abstract
Description
上記空気経路は屈曲部を有し、上記空気経路には、上記液体を保持する空間が形成されている構成である。
〔実施例〕
〔実施例1〕
図1に係る静電噴霧装置50を、前後左右のそれぞれの4方向に順次倒し、液漏れの有無を確認した後、元の状態に戻し、液漏れの有無を確認した。なお、静電噴霧装置50には、容量が200mm3の液体保持空間10が2箇所形成されており、空気経路7の角度Aは170°であり、空気経路7の一部には左右にそれぞれ5°の傾斜が設けられている。
液面保持穴5(四角)の直径 :1mm
空気穴6(円形)の直径 :1mm
空気経路7の長さ(軸の長さ) :26mm
液面保持穴5と空気穴6との直線距離:11mm
液体4として、25gの製剤を液体供給部3に充填し、封止した。上記製剤の成分比は、ジプロピレングリコールモノエチルエーテル88%、イソパラフィン5%、ポリエチレングリコール5%、0.4%の酢酸ナトリウム水溶液2%である。
〔補足〕
本発明に係る静電噴霧装置は、上記課題を解決するために、液体を噴霧する静電噴霧装置において、液体を収容するチャンバーを備え、上記チャンバー内が大気圧のときに、当該チャンバーに液体を供給する液体供給部を備え、上記チャンバーには、液体の液面高さに応じて液体によって閉塞または開放される液面保持穴が形成されており、上記液面保持穴は、当該静電噴霧装置の外部から上記チャンバーへ空気を供給する空気穴と空気経路を介して繋がっており、上記空気経路は屈曲部を有し、上記空気経路には、液体を保持する空間が形成されていることを特徴としていてよい。
2 噴霧部
3 液体供給部
4 液体
5 液面保持穴
6 空気穴
7、7a、7b、7c 空気経路
8、18、8a、8b、8c、8d 屈曲部
10、10a、10b 液体保持空間
50 静電噴霧装置
Claims (4)
- 液体を噴霧する静電噴霧装置において、
液体供給部から供給される液体を収容するチャンバーと、
上記チャンバーに形成され、上記液体の液面の高さに応じて当該液体によって閉塞または開放される液面保持穴と、当該静電噴霧装置の外部から上記チャンバーへ空気を供給する空気穴とを繋げる空気経路とを備え、
上記液面保持穴が上記液体により閉塞されると上記液体供給部から上記チャンバーへの液体供給が停止するようになっているとともに、
上記空気経路は屈曲部を有し、
上記空気経路には、上記液体を保持する空間が形成されていることを特徴とする静電噴霧装置。 - 上記空気経路は、上記液面に対して垂直又は傾斜した第一方向に延びる第一部分と、第一方向よりも上記液面に対する角度が小さくなる第二方向に延びる第二部分とを有し、
上記第一部分及び上記第二部分の間に上記屈曲部の一つである第一屈曲部が形成されているとともに、
上記第二部分は、上記第一屈曲部側が上記液面に近くなるように、上記液面に対して傾斜していることを特徴とする請求項1に記載の静電噴霧装置。 - 上記空気経路は、上記第二部分に連通し当該第二部分よりも上記空気穴側の第三部分を有し、
上記第三部分は、上記第一屈曲部とは反対側が上記液面に近くなるように、上記液面に対して傾斜していることを特徴とする請求項2に記載の静電噴霧装置。 - 上記第二部分の上記第一屈曲部側に上記液体を保持する空間の一つである第一空間が形成されており、
上記第三部分の上記第一屈曲部とは反対側に上記液体を保持する空間の他の一つである第二空間が形成されていることを特徴とする請求項3に記載の静電噴霧装置。
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AU2013355694A AU2013355694B2 (en) | 2012-12-07 | 2013-12-05 | Electrostatic atomizer |
US14/649,766 US9821330B2 (en) | 2012-12-07 | 2013-12-05 | Electrostatic atomizer |
JP2014551131A JP6170506B2 (ja) | 2012-12-07 | 2013-12-05 | 静電噴霧装置 |
CN201380063750.7A CN104837564B (zh) | 2012-12-07 | 2013-12-05 | 静电喷雾装置 |
EP13859784.4A EP2929943B1 (en) | 2012-12-07 | 2013-12-05 | Electrostatic atomizer |
ES13859784.4T ES2637540T3 (es) | 2012-12-07 | 2013-12-05 | Atomizador electrostático |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
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JP2012-268777 | 2012-12-07 | ||
JP2012268777 | 2012-12-07 |
Publications (1)
Publication Number | Publication Date |
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WO2014088050A1 true WO2014088050A1 (ja) | 2014-06-12 |
Family
ID=50883465
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Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2013/082654 WO2014088050A1 (ja) | 2012-12-07 | 2013-12-05 | 静電噴霧装置 |
Country Status (7)
Country | Link |
---|---|
US (1) | US9821330B2 (ja) |
EP (1) | EP2929943B1 (ja) |
JP (1) | JP6170506B2 (ja) |
CN (1) | CN104837564B (ja) |
AU (1) | AU2013355694B2 (ja) |
ES (1) | ES2637540T3 (ja) |
WO (1) | WO2014088050A1 (ja) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
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AR108306A1 (es) * | 2016-05-27 | 2018-08-08 | Sumitomo Chemical Co | Dispositivo de pulverización |
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JP2005238034A (ja) * | 2004-02-24 | 2005-09-08 | Matsushita Electric Works Ltd | 静電霧化装置及びこれを備えた空気清浄機 |
WO2006070739A1 (ja) * | 2004-12-28 | 2006-07-06 | Daikin Industries, Ltd. | 噴霧装置 |
WO2009044939A1 (en) * | 2007-10-05 | 2009-04-09 | Panasonic Electric Works Co., Ltd. | Electrostatically atomizing device |
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US5971215A (en) * | 1996-09-06 | 1999-10-26 | The Procter & Gamble Company | Dispensing pump lock |
US6142750A (en) * | 1998-11-30 | 2000-11-07 | The Procter & Gamble Company | Gear pump and replaceable reservoir for a fluid sprayer |
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GB0501015D0 (en) * | 2005-01-18 | 2005-02-23 | Aerstream Technology Ltd | Rigid dispenser system |
JP3969446B2 (ja) * | 2005-11-25 | 2007-09-05 | 松下電工株式会社 | 静電霧化装置 |
JP2007260674A (ja) * | 2007-04-05 | 2007-10-11 | Matsushita Electric Works Ltd | 空気調和機 |
JP5776242B2 (ja) * | 2011-03-18 | 2015-09-09 | セイコーエプソン株式会社 | キャップ、液体収容容器、および、液体噴射システム |
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2013
- 2013-12-05 EP EP13859784.4A patent/EP2929943B1/en not_active Not-in-force
- 2013-12-05 JP JP2014551131A patent/JP6170506B2/ja active Active
- 2013-12-05 ES ES13859784.4T patent/ES2637540T3/es active Active
- 2013-12-05 WO PCT/JP2013/082654 patent/WO2014088050A1/ja active Application Filing
- 2013-12-05 US US14/649,766 patent/US9821330B2/en not_active Expired - Fee Related
- 2013-12-05 AU AU2013355694A patent/AU2013355694B2/en not_active Ceased
- 2013-12-05 CN CN201380063750.7A patent/CN104837564B/zh not_active Expired - Fee Related
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JP2005238034A (ja) * | 2004-02-24 | 2005-09-08 | Matsushita Electric Works Ltd | 静電霧化装置及びこれを備えた空気清浄機 |
WO2006070739A1 (ja) * | 2004-12-28 | 2006-07-06 | Daikin Industries, Ltd. | 噴霧装置 |
WO2009044939A1 (en) * | 2007-10-05 | 2009-04-09 | Panasonic Electric Works Co., Ltd. | Electrostatically atomizing device |
WO2009107513A1 (ja) * | 2008-02-26 | 2009-09-03 | パナソニック電工株式会社 | 静電霧化装置 |
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Also Published As
Publication number | Publication date |
---|---|
AU2013355694B2 (en) | 2018-02-01 |
US9821330B2 (en) | 2017-11-21 |
CN104837564B (zh) | 2017-05-17 |
AU2013355694A1 (en) | 2015-07-09 |
JP6170506B2 (ja) | 2017-07-26 |
EP2929943A4 (en) | 2016-07-27 |
EP2929943A1 (en) | 2015-10-14 |
EP2929943B1 (en) | 2017-07-12 |
CN104837564A (zh) | 2015-08-12 |
ES2637540T3 (es) | 2017-10-13 |
US20160184843A1 (en) | 2016-06-30 |
JPWO2014088050A1 (ja) | 2017-01-05 |
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